x = int(input())

if x >= 1800:
  out = 1
elif x >= 1600:
  out = 2
elif x >= 1400:
  out = 3
elif x >= 1200:
  out = 4
elif x >= 1000:
  out = 5
elif x >= 800:
  out = 6
elif x >= 600:
  out = 7
else:
  out = 8

print(out) x = int(input()) x int(input()) int input() input if x >= 1800:
  out = 1
elif x >= 1600:
  out = 2
elif x >= 1400:
  out = 3
elif x >= 1200:
  out = 4
elif x >= 1000:
  out = 5
elif x >= 800:
  out = 6
elif x >= 600:
  out = 7
else:
  out = 8 x >= 1800 x 1800 out = 1 out 1 elif x >= 1600:
  out = 2 x >= 1600 x 1600 out = 2 out 2 elif x >= 1400:
  out = 3 x >= 1400 x 1400 out = 3 out 3 elif x >= 1200:
  out = 4 x >= 1200 x 1200 out = 4 out 4 elif x >= 1000:
  out = 5 x >= 1000 x 1000 out = 5 out 5 elif x >= 800:
  out = 6 x >= 800 x 800 out = 6 out 6 elif x >= 600:
  out = 7 x >= 600 x 600 out = 7 out 7 out = 8 out 8 print(out) print out out = 8 8 out out = 4 4 out out = 2 2 out x = int(input()) int(input()) x out = 7 7 out out = 6 6 out out = 1 1 out out = 3 3 out out = 5 5 out
x = int(input())

if x >= 1800:
  out = 1
elif x >= 1600:
  out = 2
elif x >= 1400:
  out = 3
elif x >= 1200:
  out = 4
elif x >= 1000:
  out = 5
elif x >= 800:
  out = 6
elif x >= 600:
  out = 7
else:
  out = 8

print(out)